Beiping City, Chengjia Courtyard.

The children were standing on tiptoe, grabbing the windowsill of Cheng Nuo's office and looking inside, because they were of different ages and tall and short, so some people could see it, and some people were anxious.

Seeing this, Wen Cong held up his sister and asked her to stand a little higher, and now that the injury is completely healed, he said loudly: "Huihui, can you see it clearly now, do you see the thing that Mr. often takes." ”

Goudan'er got some saliva and wiped the window brighter: "Sister Wenhui, you have to read the name of the book clearly, and when the time comes, let's save up money and go to the bookstore to buy a copy, and everyone will read it together at that time." ”

Nidan'er leaned against the wall, her face lacked interest: "Why don't you believe it, Mr. is so powerful, it's not that there are any cheats, it's that he reads more books, and he will get more, just like our teacher said, read a book a hundred times and see its own meaning." ”

The dog stared, and pointed his finger on his sister's forehead: "As far as you little girl know, next time the teacher punishes me for copying books, you can help me, just so you can learn more." ”

Nidan hurriedly wiped the area that was lit: "It's dirty, wait for our mother to come back and I'll tell her if I don't talk about it, anyway, it's not right to peek at Mr.'s things." ”

Goudan'er was not convinced: "Who said that it was stolen, we just want to see, and after suing, you won't eat the rock sugar gourd." ”

These children saw that Cheng Nuo's room was closed, and they didn't have a chance to enter it on weekdays, and they were all as powerful as Mr. Cheng, thinking that there must be something powerful in the room, just like the treasure in the play, and their intuition told them that it was a book that Cheng Nuo often held.

So out of a child's mentality, I want to see what is going on through the window, but I don't have the courage to steal, but I still have the heart to give up my pocket money to save a sum of money, and if I can't do it, I can also sell newspapers, push carts, shine shoes, etc., there will always be a way to save slowly.

"Brother, I can see it clearly, the name seems to be called "Mathematical Dictionary", have you heard of this name?" Wen Hui felt sorry for her brother, and wanted to hurry down after speaking.

Wen Cong carefully put his sister down and asked, "Are you sure you're right, is it called "Dictionary of Mathematics", it seems that I haven't heard of this name, it must be that he is right." ”

Goudan'er has only been reading for a few days, and he doesn't know much, and when he saw the two brothers and sisters say this, he directly believed it in his heart: "Yes, it should be it, I'll go to the bookstore and ask Ming'er to see how much it is, let's have a number in our hearts." ”

At this time, a familiar and unfamiliar voice suddenly came from behind: "What are you doing, do you see any good treasures, I'll take a look." ”

As he spoke, the man also leaned on the windowsill and looked in through the window, looking very curious.

When the children looked back, it was Cheng Nuo himself, and now he was lying with them, and his soul was about to fly away.

"Sir, I'm sorry, I didn't know you were coming back, or we wouldn't have dare."

As the eldest brother and the "main culprit", Goudan took the initiative to stand in front of his younger brothers and sisters, bowed his head and stretched out his hand, looking like he was being punished by the king.

Cheng Nuo almost couldn't stop laughing when he saw it, this must be so familiar, playful, clenched his fists and raised them high, scaring these children with their eyes closed, lest the "tragedy" happen.

Even the dog, who has always dared to act boldly, closed his eyes tightly when he saw this, and his mother was not so afraid when he beat him.

It's just that what he didn't expect was that Mr.'s hand was raised high, put it down gently, and secretly opened a slit, and found that there were a few small pimples wrapped in paper in his palm, which were beautiful and green, but he had never seen them.

Seeing that the gentleman paid attention, he immediately craned his neck and closed his eyes tightly.

"Okay, don't pretend to be a dog, open your eyes, this is the candy I brought to you from Shanghai, how about it taste."

Seeing this, the children immediately shouted and shouted, waiting for Cheng Nuo to give them the sugar, and they ate it until it was sweet in their mouths, and they felt a lot closer to Mr.

"How's it going, is it delicious?"

"It's so sweet, sweeter than stove sugar, thank you, sir."

Cheng Nuo did not forget his task, led the children into the house to introduce the mathematical dictionary, and said that he would give each of them a copy when it was published in the future, encouraging them to study hard, and if they didn't understand, they could come to him at any time.

Looking at the children's distant figures, Cheng Nuo carried the dictionary in his hand, although it was only the first draft, it was too cumbersome, and it was a good teacher and friend for professional mathematics practitioners, but for these students who were new to mathematics, it was not conducive to checking and reading, and they might have retreated when they saw such a thick pile.

When I came to the front yard, I found the temporary office of the School of Mathematics, where several people were compiling books.

"Come on, come on, everyone has worked hard, this is the specialty pear paste candy I brought from Shanghai, and I'm busy these days, take it and share it."

Yan Jiayu, who was still proofreading, raised his head and saw Cheng Nuo coming back, his face was full of surprise: "Dean?!" When did you come back, you're going to miss us to death. ”

Ma Minghai, who was about to pour water to drink, immediately stopped, ran over and said with a smile: "My dear dean, you still think that we still have a mathematical and physical college, I thought you ran away with your sister-in-law with funds." ”

"you, my wife is gone, where is the sister-in-law, hurry up and divide the sugar with everyone and plug your mouth." Cheng Nuo scolded with a smile and handed over a large bag of pear paste candy.

These two people are the backbone of the people he invited, both have master's degrees, one is from the same school as Harvard, and the other is from Columbia University.

In private, everyone has a good relationship, but when it comes to work, each one is more serious than the other.

Cheng Nuo picked up the "Mathematical Dictionary" that had been proofread twice on the table, looked through it for a while, and said: "Everyone has done a good job, especially in the back, I have simply sorted out the history of mathematics at home and abroad, which surprised me very much, and it has reached the point where I can contact the publisher." ”

Yan Jiayu said solemnly: "Dean, I don't think our example questions are clear enough, and I plan to streamline it later, and strive to have a detailed explanation or proof process attached to each important knowledge point." ”

Ma Minghai followed and said: "Yes, in addition to what Lao Yan said, some famous mathematical conjectures that have been proved or unsolved, I am also ready to add them, such as your Kroneck's dream of youth, I am also thinking about what form to integrate into it." ”

"Kroneck's dream of youth can be put in the part of number theory, just say it simply, and this does not need to be long." Cheng Nuo sat on the seat, put the book stall on his lap, and said with a smile: "But in this way, I am afraid that we will not be able to put down our "Mathematical Dictionary", and we will have to change the name to "Mathematical Dictionary", and a few of us here may not be able to complete it in a year or two." ”

"So what is the Dean's opinion?"

"My opinion is that if you can fit in one, you don't need two, and the name should be changed to "Concise Mathematical Dictionary", just like his name, you only need to introduce its concept in plain language, and if readers want to know more, they can note the name of the professional book on the side."

"But in this way, the heaviness of our book will be greatly lost, and I am afraid that the effect may not be good."

Cheng Nuo slid down from the table and said: "On the contrary, we should have less sense of heaviness and more sense of popular science, and remember that our books are used to lower the threshold for readers to learn mathematics, not to increase the trouble, not to say a few lines, even a few pages can't replace professional books." ”

Under its arrangement, the work of the "Concise Mathematical Dictionary" is simplified, and the main target is primary and secondary school students, including arithmetic, algebra, plane geometry, solid geometry, plane trigonometry, plane analytic geometry, spatial analytic geometry, probability, statistics, logical algebra and other common words, about more than 2,000 words.

And considering that many students may drop out of school halfway, they simply added a chapter on abacus content, with their mental formulas, as long as he is literate, he can rely on those pages of content to slowly get started, and gradually master the abacus, a craft that can make him eat.

However, in this way, although the overall content needs to be greatly changed, the main work done is mainly streamlining, but it is much faster than before.

After giving instructions for the plan, Cheng Nuo was about to leave the courtyard and happened to bump into Li Laosan.

I haven't seen him for a while, Li Laosan's face has darkened a lot, but his spirit seems to be better.

"Sir, when are you coming back, why don't you inform me, I will also pick you up at the Qianmen train station, so that you can run so far."

"Hey, Lao Li, you don't know you by sending you a telegram, it's better for me to walk back by myself, save worry and trouble." Cheng Nuo waved his hand and said casually, just such a way, just take a taxi and come back, you can't send a telegram specifically, that thing is charged by the word, and it is not less than the car price.

Li Laosan smiled honestly when he heard this: "Sir, in fact, I actually know a few words, if you send a telegram again, I will definitely know it." ”

Cheng Nuo was surprised: "Yes, Shibei Sanri Lao Li, you made me impressed, come on, I will test you, you write your name to me." ”

Seeing this, Li Laosan picked up a piece of soil in the yard with great interest, and wrote his name on the ground one by one.

Although the words are crooked, the three words "Li Laosan" are still faintly visible, and it seems that he can really write his name.

Seeing this, Cheng Nuo couldn't help but punch him in the chest: "Lao Li, you are really good, when I go out again, can you still give me another surprise, tell me how you learned." ”

Li Laosan threw away the soil, patted the soil on his hands and smiled honestly: "Didn't you say before you left that I could be a gentleman if I planted good land, I thought about how there was a reason for Mr. to be illiterate, so I asked someone to teach me slowly." ”

Breaking his fingers and counting his eyeballs, Li Laosan smiled and said: "I will have as many palms as many as eight now, and I will continue to learn later." ”

Through a smile, Cheng Nuo saw the green and blackened wheat seedlings in the yard, thick and powerful, with well-developed roots, obviously very energetic like the owner.

This man, when he has hope, the days are different.

"Mr. Li, let's go, let's go to the Commercial Press!"

(End of chapter)